BS 5500:1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
Hardcopy , PDF
15-11-1999
English
01-01-1997
Committees responsible
Summary of pages
Foreword
Specification
Section 1. General
1.1 Scope
1.2 Interpretation
1.3 Definitions
1.4 Responsibilities
1.5 Information and requirements to be agreed and to
be documented
1.6 Thicknesses
Section 2. Materials
2.1 Selection of materials
2.2 Materials for low temperature applications
2.3 Carbon, carbon manganese and alloy steels
Section 3. Design
3.1 General
3.2 Application
3.3 Corrosion, erosion and protection
3.4 Construction categories and design stresses
3.5 Vessels under internal pressure
3.6 Vessels under external pressure
3.7 Supports, attachments and internal structures
3.8 Bolted flanged connections
3.9 Flat heat exchanger tubesheets
3.10 Design of welds
3.11 Jacket construction
3.12 Manholes and inspection openings
3.13 Protective devices for excessive pressure or vacuum
Section 4. Manufacture and workmanship
4.1 General aspects of construction
4.2 Cutting, forming and tolerances
4.3 Welded joints
4.4 Heat treatment
4.5 Surface finish
Section 5. Inspection and testing
5.1 General
5.2 Approval testing of fusion welding procedures
5.3 Welder and operator approval
5.4 Production and control test plates
5.5 Destructive testing
5.6 Non-destructive testing
5.7 Acceptance criteria for weld defects revealed by
visual examination and non-destructive testing
5.8 Pressure tests
5.9 Inspection requirements for cast components
Annexes
A Recommendations for design where loadings and
components are not covered by section 3
B Recommendations for cylindrical, spherical and
conical shells under combined loadings, including
wind and earthquakes
C Requirements for the assessment of vessels subject
to fatigue
D Requirements for ferritic steels in bands M0 to M4
inclusive for vessels required to operate below 0degC
E Recommendations for welded connections of pressure
vessels
F An alternative design approach for compensation
using the pressure area method
G Recommendations for methods of calculation of
stresses from local loads, thermal gradients, etc.
H Recommendations for post-weld heat treatment of
dissimilar ferritic steel joints
J Recommendations for pressure relief protective
devices
K Requirements for the derivation of material nominal
design strengths for construction category 1 and 2
vessels
L Not allocated
M Guidance on safe external working pressure for
cylindrical sections outside the circulatory
limits specified in 3.6
N Not allocated
P Recommendations for preparation and testing of
production control test plates
Q Recommendations for preparation and testing of
production control test plates
R Guidance on additional information for flat ends
and flat plates
S Guidance on optional documentation for supply with
vessel
T Recommendations for arc welded tube to tubeplate
joints
U Guidance on the use of fracture mechanics analyses
V Requirements for testing and inspection of serially
produced pressure vessels
W Worked examples for vessels under external pressure
Y Worked examples for supports and mountings for
horizontal vessels
Aluminium Supplement
Requirements for aluminium and aluminium alloys in
the design and construction of unfired fusion
welded pressure vessels
Nickel Supplement
Requirements for nickel and nickel alloys in the design
and construction of unfired fusion welded pressure
vessels
Tables
1-5-1 Purchaser options and features requiring approval
by the purchaser
2-1-1 Material banding
2-1-2 Temperature above which time dependent properties
shall be considered
2-2-1 Bolting materials for low-temperature
2-3-1 Design strength values: index of steels
2-3-2 to
2-3-5 Design strength values
3-4-1 Construction categories
3-5-1 -
5-7-5
A.1 Classification of stresses for some typical cases
C.1 Details of fatigue design curves
C.2 Classification of weld details
C.3 Values of M1, M2 and M3
C.4 Weld defect acceptance levels
C.5 Fatigue test factor F
D.1 Impact requirements for plates, forgings,
castings and tubes
D.2 Design reference temperature
D.3 Design reference temperature for heat exchanger tubes
G.1 Values of K1 and K2
G.2 Design factors K1 and K2
G.3 Design factors K3 and K4 and allowable tangential
shearing stresses
G.4 Design factor K6
G.5 Values of constants C4, C5, K5, K7 and K8
G.6 Values of K10 and K11
G.7 Circumferential stress factor C1
G.8 Bending stress factor C2
G.9 Meridional stress factor C3
G.10 Branch bending stress factor C4
H.1 Classification of materials
P.1 Design strength values
T.1 Tube to tubesheet joints: essential tests and the
suitability of joint types for optional tests
W.1 Design data assumed for cylindrical sections
W.2 Summary of calculation for e
W.3 Derivation of Le/Ls
W.4 Design data assumed for cylindrical sections
W.5 Values required for method B
W.6 Design data assumed for cylindrical sections
W.7 Measured radii and departure from mean circle
W.8 Values of an, bn and pm(n)
W.9 Values of br(n)
Y.1 Design data
Y.2 Interpolation of table G.4 for K6
Y.3 Summary of stresses (N/mm2)
2-3-1
4-4-1 Design strength values: aluminium and aluminium
alloys
5-7-1 Acceptance levels
5-8-1 Principal stages of inspection
Figures
Index
List of references
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